A032057 Doubles (index 2+) under "BGJ" (reversible, element, labeled) transform.

2, 2, 12, 174, 2880, 67560, 1905960, 63251370, 2418101280, 104707709820, 5063563002960, 270496771471080, 15820958657223720, 1005528154974983640, 69006386355388962480, 5085661679602382028150

Offset

1,1

Links

Table of n, a(n) for n=1..16.

Crossrefs

Sequence in context: A032069 A003090 A032152 * A364774 A130718 A268528

Adjacent sequences: A032054 A032055 A032056 * A032058 A032059 A032060

Keyword

nonn

Author

Christian G. Bower

Status

approved